Isostructural solid-solid transition of (colloidal) simple fluids



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Fernández Tejero, Carlos and Daanoun, A. and Lekkerkerker, H. N. W. and Baus, M. (1995) Isostructural solid-solid transition of (colloidal) simple fluids. Physical Review E, 51 (1). pp. 558-566. ISSN 1539-3755

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A variational approach based on the Gibbs-Bogoliubov inequality is used in order to evaluate the free energy of simple fuids described by a double-Yukawa pair potential. A hard-sphere reference fuid is used to describe the fuid phases, and an Einstein reference crystal to describe the solid phases. A part from the usual type of phase diagram, typical of atomic simple fuids with long-ranged attractions, we find two types of phase diagrams, specific to colloidal systems with intermediate and short-ranged attractions. One of the latter phase diagrams exhibits an isostructural solid-solid transition, which has not yet been observed experimentally

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© 1995 The American Physical Society. C. F. Tejero acknowledges the DGICYT (Spain) (PB91-0378) and M. Baus the FNRS (Belgium) and the Association Euratom—Etat Belge.

Uncontrolled Keywords:Yukawa Model, Free-Energy, Suspensions, FCC, Phases
Subjects:Sciences > Physics > Thermodynamics
ID Code:23901
Deposited On:12 Dec 2013 12:48
Last Modified:02 Nov 2015 15:50

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